16 fully-programmable Hype response gaming buttons are engineered for rapid key actuation and crisp responseThe Razer Nostromo's all-new configuration software is as easy to use, allowing you to conveniently customize all the buttons with any game command or key binding.Nostromo Gaming KeypadThe Razer Nostromo's all-new configuration software is as easy to use, allowing you to conveniently customize all the buttons with any game command or key bindingConnects to PC with USB 2.0 port